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Mazyrski [523]
3 years ago
5

Factor complete x^2 +2x-15

Mathematics
2 answers:
Molodets [167]3 years ago
4 0

Answer:

3  and  5 , as  − 3 + 5 = 2  

∴ ( x − 3 ) ( x + 5 )

Murrr4er [49]3 years ago
3 0

Answer:

( x - 3 ) ( x + 15 )

Step-by-step explanation:

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Juan wants to change the shape of his vegetable garden from a square to a rectangle, but keep the same area so he can grow the s
irina [24]

The value of x that makes sense in this context is; 32.

The dimensions of the new garden is; 64 by 16.

<h3>How to find the real dimensions of the rectangle?</h3>

The expression that represents the problem statement is;

x² = (2x)(x – 16)

Expanding the bracket gives us;

x² = 2x² – 32x

x² - 32x = 0

x(x - 32) = 0

Thus; x = 0 or x = 32

x can't be 0 and as such the value of x is 32.

Thus;

The length of the new garden is; l = 2x = 64.

The width of the new garden is; w = x - 16 = 32 - 16 = 16

The dimensions of the new garden are therefore; 64 by 16

Read more about Rectangle Dimensions at; brainly.com/question/17297081

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4 0
2 years ago
Radio signals travel at a rate of 3 x 10^8 meters per second. How many seconds will it take for a radio signal to travel from a
Dimas [21]
The answer would be 0.025 seconds.
6 0
3 years ago
Read 2 more answers
Indicate the equation of the line that is the perpendicular bisector of the segment with endpoints (4, 1) and (2, -5).
vladimir2022 [97]
What we know:
line P endpoints (4,1) and (2,-5) (made up a line name for the this line)
perpendicular lines' slope are opposite in sign and reciprocals of each other
slope=m=(y2-y1)/(x2-x1)
slope intercept for is y=mx+b

What we need to find: 
line Q (made this name up for this line) , a perpendicular bisector of the line p with given endpoints of  (4,1) and (2,-5)

find slope of line P using (4,1) and (2,-5) 
m=(-5-1)/(2-4)=-6/-2=3

Line P has a slope of 3 that means Line Q has a slope of -1/3.

Now, since we are looking for a perpendicular bisector, I need to find the midpoint of line P to use to create line Q. I will use the midpoint formula using line P's endpoints (4,1) and (2,-5).

midpoint formula: [(x1+x2)/2, (y1+y2)/2)]
midpoint=[(4+2)/2, (1+-5)/2]
              =[6/2, -4/2]
              =(3, -2)

y=mx=b       when m=-1/3 slope of line Q and using point (3,-2) the midpoint                                 of line P where line Q will be a perpendicular bisector

(-2)=-1/3(3)+b               substitution
-2=-1+b                           simplified
-2+1=-1+1+b                 additive inverse
-1=b

Finally, we will use m=-1/3 slope of line Q and y-intercept=b=-1 of line Q
y=-1/3x-1



4 0
3 years ago
Read 2 more answers
What is the solution for the system of equations 6x + 3y = 15 ? 8x + 4y = 20​
Sedaia [141]

Answer:

point form: (5/2, 0)

equation form: 5/2, y=0

Step-by-step explanation:

8 0
3 years ago
How to simplify 25/100
zmey [24]

The process to simplify a [proper] fraction is always the same:

-- If the numerator and denominator have a common factor,
then divide them both by it.

-- If they still have a common factor, then divide them both by that one.

-- Keep doing that until their only common factor is ' 1 '. 
That's when the fraction is in simplest form.

=========================================

A slightly different approach is:

-- Find the <em><u>greatest</u></em> common factor of the numerator and denominator.

-- Divide the numerator and denominator both by it.

-- The fraction is then in simplest form.

==========================================

As an example, let us do some work on the fraction you have provided:

             <em>  25 / 100</em> .

-- The factors of  25  are  1 ,  5 , and  25 .

-- The factors of  100  are  1 ,  2 ,  4 ,  5 ,  10 ,  20 ,  25 ,  50 , and  100 .

-- The factors that are common to  25  and  100  are  1 ,  5 , and  25 .

-- The greatest one of those is  25 .

So ' 25 ' is the number by which you should divide the numerator and denominator of your fraction.  When you do that, the fraction will be in its simplest form.


6 0
3 years ago
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